Promax DP-1 Seat Post Clamp

The very first multi-tasking seatclamp has arrived! Cold forged and CNC machined from resilient 6061-T6 aluminum alloy, the DP-1 clamp is designed to be used with a remote dropper seatpost. Keep your cable secure and protected as this clamp directs and guides between the lever and seatpost. The DP-1 clamp is refined and lightweight, weighing in at only 20 grams to provide the unscathed routing a dropper post requires. The laser etched graphics and stainless steel hardware give the DP-1 clamp good looks to go along with its intelligence. The perfect combination!

Designed to work in conjunction with a remote dropper seatpost

Cold forged and CNC machined from 6061-T6 aluminum alloy for durability and dependability

My dropper's cable comes out from the stationary base of the post and so the cable is static. This clamp is clearly more suited for dropper's where the cable is attached to the top of the post. Use your dropper post's manual for determining max torque for the clamp.

There's not a lot to say really: if you have a dropper post with the cable attached to the telescopic part of the seat post (and therefore cable movement during actuation), then 2 things should be clear to you:1. Be thankful you didn't jump onboard the stealth and fixed cable position posts trend so soon ... what a stuff up those posts have been!2. You should most definitely have this clamp. It's a no brainer .... assuming like me both your bikes have the one size clamp offered.

It does a good job of keeping the cable where it is supposed to be while letting it move up and down, but I already broke mine. While on a ride I decided I needed to move my seat forward and post up just a little, and with my tiny multi tool I torqued it enough to break the clamp. I cant really blame the clamp since the max torque is printed right on it, but it is definitely worth knowing that it isnt a good idea to attempt an adjustment on the trail without the proper tools.I have another one on a different bike that I set up right the first time and Ive had no problems with it.

Purchased this clamp as an upgrade to the stock ziplock clamp that comes with the Rockshox Reverb. The guide can be located wherever you choose, and keeps the hose from going places you don't want it to. Well built, cool design and colors. Use it on every bike with a Reverb or similar hose setup. No regrets, No worries.

Didn't need to adjust the cable router for the dropper post but nice that it's there if I see rubbing or it starts hitting my leg. I was surprised that it has managed with the recommended torque value; usually these need a little extra. nice finish and the fact that I haven't even thought about it means it's doing its job flawlessly.

This clamp replaced the one that came with my Stumpy Evo, which I sheared. Clamp keeps my dropper pist cable from catching. Also substantially cheaper than buying one from Specialized, and a lot quicker & cheaper to ship.

the "clamp loop" feature is very useful if you are using an adjustable seat post with an external cable routing. that's the only reason i bought this over the others, but the material of which the "clamp loop" is made out of is very brittle, i have cracked mine because i slightly over tightened it. if you are careful enough you should not have this issue. Other than that its a great investment.

This seat clamp works perfectly with any dropper post with external routing. It really cleaned up my seat post and guided the cable to where it doesn't hit the tire when dropping. The adjustable loop is made of plastic so be careful not to strip them out, otherwise a great product and cool color choices.

It does what it's designed to do, route your dropper cable so it loads to the front of your bike instead of by your rear wheel. I have these post clamps on 3 of my bikes that have dropper posts. Use caution when tightening down the small loop for the cable as it cracks easily. Don't use much torque at all or it'll crack!

I used this for a reverb post on a Rocky Mountain Slayer frame. The clamp says 7nm max on it, and Rockshox recommends 5nm (44 in/lbs) max torque on clamps for their post. I could not torque this anywhere near the recommended without it pinching the post. I could only torque it to 28 in/lbs without it impeding the dropper post (it would stick 1/2 way through travel). This clamp is maybe 3/8" tall top to bottom. I think that it may be too narrow, and that causes the pinching. I have since gone back to a Hope dropper clamp, which I have also used on other frames, and had no problems. The Hope clamp is about 3/4" tall, so it spreads out the clamping force more. I still only use about 35 in/lbs in torque, but no squeaking or movement.

"It broke rather quickly". the loop that holds your dropper post cable will undue from all the vibration. I lost the screw (1st problem). 2nd, it was tightened down to spec and my seat post would slip. 3rd, to remedy this problem I over torqued. The bolt snapped; its broken laying in my parts bin somewhere.

Part that loops that makes this seatpost clamp special is made of plastic. It is pretty fragile. It cracked when I was tightening the miniature hex screws that hold it in place. A few weeks later, when I extended my Command Post to full height, it blew that little plastic piece clean off my bike.

It works well so far, but the sizing seems to be off on these: I bought a 34.9, which should be the correct diameter for a 30.9 seatpost, and it rides loosely on the seat post when not snugged up, as opposed to normal clamps that will slide on snugly. When tightened up, it doesn't clamp uniformly: the top of the clamp squeezes together, while the bottom doesn't. As it stands, the bottom edge of the clamp isn't even touching the seat tube. It hasn't moved, however, so at this point it works, it just makes me nervous.

When I saw this, I thought it was Xmas! - I saw the price and thought ... I have to get this and solve my KS Lev cable problems!

Once it arrived, oh surprise, extremely poor quality, cheap quality (well, cant complain about the price though) - the "hook" (loop) for the dropper post cabl was literally ripped apart by cable pull in the second ride.

This idea is good, this particular "cable loop" (whatever is called) is Useless!

Poor design on the for the cable holder, it broke on the first ride. Also, the clamp couldn't close tight enough to hold my seat post in place for the entire ride. When I tried to tighten again the bold sheered off and that was the end of it.

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